小平面

The karst caves could be accurately detected only when the boundary of the karst caves has a horizontal extension, as well as the interface of the karst caves is single plane and the normal direction is parallel or small angle intersection (0°~45°) with tunnel axis.

只有溶洞的边界有一定的横向延伸性，溶洞界面呈非常明显的单一平面特征，其法线方向与隧道轴线平行或以较小的角度相交(0°~45°)，溶洞才能被准确探测。

Cuting the circle with the parallel plane pencil =+ of equidistant, we get discrete point dates s and the value of the corresponding plane .

用平行于的等距平行平面=+截该圆截线，进而得到一组圆截线上的离散点数据以及可以与圆截线相截的对应平面的值，记其最大与最小值为。

When inverse synthetic aperture radar imaging the target with complex motion,the time-varying rotation vector will induce phase errors depending on the scatter positions.

1引言ISAR成像中通常假设，目标的转动限制在二维平面内，且目标均匀转过了一个小的角度。

The minimum weight triangulation of a planar point set is a long-standing open problem in the fields of computational geometry and algorithm design.

平面点集的最小权三角剖分问题是计算几何和算法领域的一个长期悬而未决的公开问题。

The planarity and the average degree of the bond of the initiators are discussed by the full-matrix least-squares on F〓.

通过最小二乘法计算结果，讨论了分子的平面性及键长平均化程度，诠释了分子内电荷转移的趋势及有可能的引发机理。

On the summit there is a piece of plain about 100 acres in area, it is a planation surface which is formed 5 million years ago.

佛洞塔因山形似塔，峰上有洞，洞中有佛而得名，海拔1027米，峰顶有一百亩小平地，称为夷平面，它是距今500万年期间形成的。

In this paper, we report the calculation of single line-image and double lineimage for various configuration of diffractive optical element, which were designed as one- dimensional plane configuration of bar- shaped pure- phase from the principle of the optical equal- path compensation.

报道以一维平面阶梯条形纯位相结构，用等光程补偿的物理概念出发，计算了单线与双线象的衍射光学元件的多种构形，获得了与理想衍射线象符合的光强分布；同时发现双线象时会出现噪音光强小峰，这在精确成象时仍是要设法避免的。

In the process of solving this problem, we established a mathematical model of graphics coordinate transformation, using the least square method to determine the target on the properties of the geometric center of the image in the camera image plane coordinates.

在处理这个问题的过程中偶们建立了图形坐标变换的数学模型，采用最小二乘法来确定靶标上物的几何中心在相机像平面的像坐标。

In the process of solving this problem we established a mathematical model of graphics coordinate transformation, using the least square method to determine the target on the properties of the geometric center of the camera image plane of the image coordinates.

在解决这个问题的过程中我们建立了图形坐标变换的数学模型，采用最小二乘法来确定靶标上物的几何中心在相机像平面的像坐标。

Spatial ability plays an important role in geometry learning, and the learning of net act as a transformation bridge in plane and three- dimensional figure for students.

中文摘要空间能力在国小几何课程的学习上扮演重要的角色，而展开图的学习则提供了学生从二维平面图形转与三维立体空间能力的转换桥梁。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。